--- product_id: 19109530 title: "FC25X4" brand: "ispring" price: "£121.55" currency: GBP in_stock: true reviews_count: 11 category: "I Spring" url: https://www.desertcart.co.uk/products/19109530-fc25x4 store_origin: GB region: United Kingdom --- # High-quality coconut shell carbon 99% chlorine removal Fits standard 20"x2.5" housings FC25X4 **Brand:** ispring **Price:** £121.55 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your home hydration game—because your family deserves nothing less! ## Quick Answers - **What is this?** FC25X4 by ispring - **How much does it cost?** £121.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/19109530-fc25x4) ## Best For - ispring enthusiasts ## Why This Product - Trusted ispring brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pure Water, Pure Power:** Removes up to 99% of chlorine and odors for crisp, clean water every time. - • **Seamless Compatibility:** Designed to fit standard 20" x 2.5" housings including popular iSpring models for effortless replacement. - • **Long-Lasting Performance:** Filters up to 30,000 gallons—enough clean water for a family of four for half a year. - • **Trusted Quality & Support:** NSF/ANSI certified with lifetime free tech support and extended warranty for total peace of mind. - • **Optimal Flow, Minimal Fuss:** Maintains up to 12 GPM water flow with minimal maintenance, so your household never skips a beat. ## Overview The iSpring FC25X4 pack of four CTO carbon block water filter cartridges delivers premium filtration by removing up to 99% of chlorine and contaminants that cause bad taste and odors. Made from high-quality coconut shell carbon, these 20" x 2.5" filters fit standard housings and maintain optimal water flow up to 12 GPM. Certified to NSF/ANSI standards, each cartridge filters up to 30,000 gallons, providing clean, fresh water for about six months for a family of four. Backed by lifetime tech support and an extended warranty, these filters ensure reliable, hassle-free water purification. ## Description iSpring 20"X2.5" Whole House Water Filter CTO Carbon Block - Pack of 4 Review: Hi Quality OE replacement filters for 20" iSpring - I've been using the iSpring whole-house triple stage filter system for about 4 years now. I only purchase OE filters from iSpring. These FC25 carbon filters are great and I get at least 5 months - or more- of filtering with NO chlorine smell at all in my water, could not be happier. I change them at approximately 30K gallons filtered. Review: Excellent product - I have used these filters for a couple years now. This removes the metals and give a great taste to the water. My wife and I both love the result. I had one filter that had an issue and Nick at iSpring support was great to deal with and replaced the filter immediately. Great customer support. ## Features - Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25 carbon block filter is specially designed to remove up to 99% of chlorine from water as well as various other contaminants that cause unpleasant odors and tastes. - Standard Size: Our filter set fits standard 20” x 2.5” housings, including brand name models. - Top-Notch Quality: Our FC25 CTO Carbon Block filters are made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. They are tested by an independent third-party to meet NSF/ANSI standards. The filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year. The 20” x 2.5” filter cartridges have a minimum impact on water flow (up to 12 GPM) and require minimum maintenance. - Peace of Mind Customer Service: Register online to activate your extended manufacturer warranty and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help! - Please Note: The cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00866HJ7C | | Best Sellers Rank | #498,567 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5,208 in Water Coolers & Filters #42,103 in Kitchen & Bath Fixtures | | Brand Name | iSpring | | Customer Reviews | 3.8 3.8 out of 5 stars (46) | | External Testing Certification | ANSI, NSF | | Item Dimensions D x W x H | 2.5"D x 2.5"W x 20"H | | Item Weight | 8 Ounces | | Manufacturer | iSpring Water Systems | | Manufacturer Part Number | FC25x4 | | Material Type | Carbon Fiber | | Model Number | FC25X4 | | Number of Items | 4 | | Product Benefits | Reduces Chlorine | | Set Name | Set of 4 | | UPC | 662425048182 | ## Product Details - **External Testing Certification:** ANSI, NSF - **Item Weight:** 8 Ounces - **Material:** Carbon Fiber - **Product Benefits:** Reduces Chlorine - **Product Dimensions:** 2.5"D x 2.5"W x 20"H ## Images ![FC25X4 - Image 1](https://m.media-amazon.com/images/I/81psFt26pYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Hi Quality OE replacement filters for 20" iSpring *by C***H on December 15, 2023* I've been using the iSpring whole-house triple stage filter system for about 4 years now. I only purchase OE filters from iSpring. These FC25 carbon filters are great and I get at least 5 months - or more- of filtering with NO chlorine smell at all in my water, could not be happier. I change them at approximately 30K gallons filtered. ### ⭐⭐⭐⭐⭐ Excellent product *by T***. on January 27, 2021* I have used these filters for a couple years now. This removes the metals and give a great taste to the water. My wife and I both love the result. I had one filter that had an issue and Nick at iSpring support was great to deal with and replaced the filter immediately. Great customer support. ### ⭐ No returns free *by T***S on July 6, 2025* Wrong size I need, and yet same product number. So cost me $20 to return. Will not buy the same brand that won’t return ## Frequently Bought Together - iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - iSpring FP25X4 High Capacity 20” x 2.5” Water Replacement Cartridges Fine Sediment Filter, 5 Micron, 4 pieces, White, 4 Piece - iSpring FG25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - Granular Activated Carbon - Fits RCB3P Reverse Osmosis System and other 20” x 2.5” Systems - Pack of 4 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/19109530-fc25x4](https://www.desertcart.co.uk/products/19109530-fc25x4) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-14*